Hey, I installed H16.0.557 in OSX Sierra and the icons are missing and I get python errors. Whats going on? Im guessing its all apples fault. Some permissions that needs to be set somewhere? H15 works fine btw.
First make sure all Houdini sessions are closed. Then try remove or rename your $HOME/houdini16.0 directory to something else, then start Houdini again.